Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (-1, 0, 1), (0, 1, 0), (1, -1, 0)}.
A148283
Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (-1, 0, 1), (0, 1, 0), (1, -1, 0)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =12a(5) =32a(6) =92a(7) =277a(8) =823a(9) =2608a(10) =8602a(11) =27487a(12) =91954a(13) =317118a(14) =1070466a(15) =3694465a(16) =13109697a(17) =46047042a(18) =162460455a(19) =588094407a(20) =2123508899a(21) =7635228131a(22) =28024695724a(23) =103185183237a(24) =377404197974
External references
- oeis: A148283